905 80TH ST SW MTORRES AMERICA 2018-09-18

{ Permanent slopes steeper than 25% shall be designed by a professional civil or geotechnical engineer. The design should present appropriate erosion control measures which may include: hydroseeding, erosion control blankets, rip-rap,jute matting, and visqueen. 9. Grading/filling must not adversely affect the hydrology of streams and existing or created wetlands. 10. Grading/filling on-site shall not adversely affect adjoining sites. 11. Clearing limits shall be staked, flagged, and/or fenced off prior to initiation of any clearing or land alteration activities as approved by the Engineering and Public Services Inspector. Where the clearing limit is the edge of a geologically hazardous area or its buffer, the clearing limit shall be fenced during construction with a chain link or solid wooden fence a minimum of 4 feet high. Following completion of construction and prior to issuance of occupancy permits, a permanent fence must be provided along the edge of the buffer. The fence must be split rail or an alternative design approved by the Planning Director. Environmentally sensitive areas signs must be posted on the fence. 11. Removal of native vegetation within the building setback and buffer areas must be avoided when possible. 12. Project proponents should try to retain topsoil on sites to the maximum extent feasible. Section 4: SURFACE/GROUNDWATER, PLANTS AND ANIMALS 4.3. Mitigation Measures 4.3.1 General Mitigation Measures 1. The following Best Management Practices (BMPs) must be followed for all construction work through and immediately adjacent to environmentally sensitive areas and their buffers, unless otherwise required by a permit issued by a federal or state agency. • Work should be done in the dry season whenever possible (June 15 to September 15). • The width of the corridor through the wetland or stream should be minimized. • Construction staging areas must be located outside of environmentally sensitive areas and their buffers, unless determined by the Planning Director to be infeasible. Streams, wetlands, buffers, staging areas and construction limits shall be clearly shown on construction plans. Construction limits shall be clearly marked in the field with orange construction fencing. • Work shall be done so as to minimize turbidity, erosion, and other water quality impacts. • Proper erosion and sediment control measures shall be followed to prevent sediments from entering creeks or wetlands. Erosion control measures shall be approved by the t�